thrust stage vs theatre stage

thrust stage and theatre stage both are nouns.

Word	Noun	Adjective	Verb	Adverb
thrust stage	Yes	No	No	No
theatre stage	Yes	No	No	No

As nouns, theatre stage is a hypernym of thrust stage; that is, theatre stage is a word with a broader meaning than thrust stage:

thrust stage: a theater stage that extends out into the audience's part of a theater and has seats on three sides
theatre stage: a stage in a theater on which actors can perform

Other hypernyms of thrust stage include theater stage.

thrust stage (noun)	theatre stage (noun)
a theater stage that extends out into the audience's part of a theater and has seats on three sides	a stage in a theater on which actors can perform